CN109443033A - A kind of method and device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system - Google Patents
A kind of method and device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system Download PDFInfo
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- CN109443033A CN109443033A CN201811217490.5A CN201811217490A CN109443033A CN 109443033 A CN109443033 A CN 109443033A CN 201811217490 A CN201811217490 A CN 201811217490A CN 109443033 A CN109443033 A CN 109443033A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K19/00—Regenerating or otherwise treating steam exhausted from steam engine plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The present invention relates to a kind of method and devices that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system.At present for Direct Air-cooled Unit, waste heat recovery efficiency is to be improved.Direct Air-cooled Unit exhausted spare heat is recycled to the characteristics of device of boiler supply air system by the present invention is: Steam Turbine is connected with Air-Cooling Island by turbine discharge pipeline, Air-Cooling Island is connected with Condensate of Direct Air-cooling Unit case by Air-Cooling Island condensate return pipe, evaporator, absorber, generator and condenser head and the tail are sequentially connected, driving steam steam inlet pipe and driving steam condensation water pipe are connect with generator, cyclic water tank is connected with absorber by system circulation waterpipe, frequency conversion type system circulation water pump is mounted on system circulation waterpipe, pressure fan, air-supply steam air heater and air preheater are sequentially connected.The present invention can reduce units consumption, improve the economy of unit operation, at the same can reduce a large amount of weary heat drain into around change commanders caused thermal pollution.
Description
Technical field
The present invention relates to a kind of absorptions using Direct Air-cooled Unit low-pressure final stage or penult steam extraction as driving steam
Formula heat pump group, the exhaust steam residual heat for entering Air-Cooling Island condensation to Direct Air-cooled Unit steam discharge recycle, and be arranged by system
The heat of recycling is delivered to boiler side First air and air-supply steam air heater by circulation, for substituting the auxiliary in traditional design
The Direct Air-cooled Unit exhaust steam waste heat utilization technology that steam (four sections of steam extractions) heats boiler First air and air-supply, specifically relates to
And a kind of method and device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system.
Background technique
In recent years, with the rapid development of China's power industry, large capacity, the thermal power generation unit of high parameter are each in the whole nation
Ground is built one after another.For the wide geographic area of northwest China, since the serious deficient and country of water resource is for new-built unit
The requirement of environmental protection, Direct Air-Cooled just become the commonplace mode of the cooling one kind of Steam Turbine steam discharge.For Direct Air-Cooled machine
For group, steam discharge is directly entered unit Air-Cooling Island cooling system, drives air to the use pair of unit steam discharge by air cooling blower fan
The mode of stream heat exchange is cooled down, and entire cyclic process is closed cycle, so the cooling required water consumption of unit is almost
Zero, consumption of the thermal power generation unit for water resource is reduced to the greatest extent.But simultaneously as using the steamer of Direct Air-Cooled
The unit steam discharge type of cooling, design back-pressure 10kPa or more high compared with water chiller, design THA operating condition under steam discharge temperature
For degree at 50 DEG C or more, turbine low pressure cylinder exhausted spare heat accounts for 45% or more of boiler export heating load, produced by turbine discharge
The loss of weary heat be huge.
At present for Direct Air-cooled Unit, the mode of exhaust steam waste heat utilization is primarily directed to there is the straight of heat demand
Air cooling unit is connect, mainly recycles exhausted spare heat into winter heating system, for a large amount of non-heating unit,
The part of waste heat fails to make full use of, and can only be cooled down by the Air-Cooling Island of unit, and amount of heat is brought by air to big compression ring
In border.The discharge of a large amount of weary heat of the part, the energy consumption not only for unit is a kind of greatly loss, simultaneously for ring around
Border also results in inevitable thermal pollution.Simultaneously because the northern area of China winter is very long and very cold, winter unit are transported
When row, surrounding air temperature is most down to subzero 10 DEG C hereinafter, still enter sky according to the First air and supply air temperature of design boiler
It is preheated before air preheater, so that First air or the temperature of air-supply will reach 25 DEG C or so, it is empty pre- due to entering to reduce
The low-temperature corrosion of air preheater caused by the First air or supply air temperature of device are too low and stifled ash.At present the First air of unit design and
The heat source preheated in Boiler Air Heater's of blowing uses the auxiliary vapour header in steam turbine side (four sections of steam extractions) steam, winter operation phase entire in this way
Between can expend a large amount of high-quality steam, influence unit operation economy.Although publication date is on May 27th, 2015, open
Number for CN104653242A Chinese patent in, disclose a kind of Direct Air-cooled Unit waste-heat recovery device, the Direct Air-Cooled machine
Group waste-heat recovery device needs Direct Air-cooled Unit the waste heat of cooling exhaust steam in steam turbine to be used to heat First air and Secondary Air,
To reduce the caloric receptivity of First air, Secondary Air in the boiler, thus reach energy-efficient purpose, but the Direct Air-cooled Unit waste heat
The structure design of recyclable device is not reasonable, and waste heat recovery efficiency is to be improved.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of using Direct Air-Cooled machine
The absorption type heat pump group of group low-pressure final stage or penult steam extraction as driving steam, enters Air-Cooling Island to Direct Air-cooled Unit steam discharge
The exhaust steam residual heat of condensation is recycled, and it is primary by the circulation that system is arranged the heat of recycling to be delivered to boiler side
Wind and air-supply steam air heater, add for substituting the auxiliary steam in traditional design (four sections of steam extractions) to boiler First air and air-supply
The Direct Air-cooled Unit exhaust steam waste heat utilization technology of heat.On the one hand units consumption can be reduced, the economy of unit operation is improved,
A large amount of weary heat can be reduced simultaneously drains into caused thermal pollution of around changing commanders.
Technical solution used by the present invention solves the above problems is: Direct Air-cooled Unit exhausted spare heat is recycled to pot by this
The characteristics of method of furnace supply air system, is: being driven using the low-pressure final stage of 0.1MPa or 0.1MPa or so or penult steam extraction
The exhausted spare heat that absorption heat pump grouping machine group low pressure (LP) cylinder drains into Air-Cooling Island condensation is recycled, and the heat of recycling is set by system
The circulation for the enclosed set is sent to Boiler Air Heater's and is heated to boiler air-supply and First air.
Preferably, the heat that the present invention uses absorption type heat pump group to recycle Direct Air-cooled Unit exhausted spare heat, leads to
The circulation for crossing the enclosed of system setting, which is sent to Boiler Air Heater's, heats boiler air-supply and First air；Into absorption
Formula heat pump group carries out the steam exhaust that the waste heat heat source of waste heat recycling is condensed for Direct Air-cooled Unit steam discharge into Air-Cooling Island, directly takes
From Direct Air-cooled Unit steam discharge to Air-Cooling Island pipeline.
Preferably, Direct Air-cooled Unit steam discharge of the present invention is passing through absorption heat pump into the steam exhaust that Air-Cooling Island is condensed
After carrying out heat recovery, condensate pipe is back to Direct Air-Cooled after condensed water is condensed by Direct Air-Cooled steam discharge to absorption heat pump
Unit condensate tank completes the suction to unit steam discharge using the vacuum in Condensate of Direct Air-cooling Unit case, makes it into suction
Receipts formula heat pump group, while its condensed water is automatically returned in Condensate of Direct Air-cooling Unit case using the pressure difference at this.
Preferably, present system is provided with the heat that the circulation of enclosed is used to recycle absorption type heat pump group
It send to boiler side First air steam air heater and air-supply steam air heater, to substitute in existing design steam air heater institute during unit winter operation
The steam of the auxiliary vapour header (four sections of steam extractions) used heats boiler First air and air-supply.
Preferably, present system is defeated for providing the heat for recycling heat pump group provided with variable frequency closed type water circulating pump
It send to circulation power required for boiler side First air steam air heater and air-supply steam air heater, while also acting as variable frequency adjustment effect, use
In First air and supply air temperature of the adjusting after steam air heater heats.
Preferably, the present invention is provided with the circulation of enclosed due to system, so for boiler First air warm wind
Device and air-supply steam air heater heat First air and air-supply by the way of air water heat exchange, while can retain auxiliary in former design
Steam is helped to improve the security and stability of unit operation to steam air heater interface pipe to ensure the spare of Boiler Air Heater's heat source.
A kind of device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, design feature are: packet
Include Steam Turbine, turbine discharge pipeline, Air-Cooling Island, Air-Cooling Island condensate return pipe, Condensate of Direct Air-cooling Unit case, directly
Air-cooled steam discharge to absorption type heat pump line, Direct Air-Cooled steam discharge to absorption heat pump condense after condensate pipe, evaporator, absorber,
System circulating water outlet pipe, driving steam steam inlet pipe, driving steam condensation water pipe, system circulation after generator, condenser, heating
Waterpipe, frequency conversion type system circulation water pump, a wind inlet, First air intake screen, primary air fan, pressure fan, air-supply warm wind
Device, First air steam air heater, cyclic water tank and air preheater, the Steam Turbine and Air-Cooling Island are connected by turbine discharge pipeline,
The Air-Cooling Island is connected with Condensate of Direct Air-cooling Unit case by Air-Cooling Island condensate return pipe, and the Direct Air-Cooled steam discharge is extremely
The both ends of absorption type heat pump line are connected on turbine discharge pipeline and evaporator, the Condensate of Direct Air-cooling Unit case
It is connected with evaporator by condensate pipe after Direct Air-Cooled steam discharge to absorption heat pump condensation, the evaporator, absorber, generation
Device and condenser head and the tail are sequentially connected, and the driving steam steam inlet pipe and driving steam condensation water pipe are connect with generator, institute
It states condenser to connect with air-supply steam air heater and First air steam air heater respectively by system circulating water outlet pipe after heating, the air-supply
Steam air heater and First air steam air heater are connect with cyclic water tank, and the cyclic water tank and absorber are connected by system circulation waterpipe
It connects, the frequency conversion type system circulation water pump is mounted on system circulation waterpipe, the pressure fan, air-supply steam air heater and air preheater
It is sequentially connected, a wind inlet, First air intake screen, primary air fan, First air steam air heater and air preheater are sequentially connected.
Preferably, the absorber, ancillary equipment and condenser are sequentially connected the invention also includes ancillary equipment.
Preferably, the invention also includes Direct Air-Cooled steam discharges to absorption heat pump pipe break valve, air-cooled steam discharge to suction
Condensing water conduit shut-off valve, system circulating water are into system after absorption type heat pump group pipe break valve, heating after the condensation of receipts formula heat pump
Circulating water outlet pipe road shut-off valve, driving steam steam inlet pipe road shut-off valve and driving steam condensate pipe break valve are described straight
It connects air-cooled steam discharge to absorption heat pump pipe break valve to be mounted on Direct Air-Cooled steam discharge to absorption type heat pump line, the air-cooled row
Condensing water conduit shut-off valve condenses after being mounted on Direct Air-Cooled steam discharge to absorption heat pump condensation after vapour is condensed to absorption heat pump
On water pipe, the system circulating water is mounted on system circulation waterpipe into absorption type heat pump group pipe break valve, the heating
System circulating water outlet conduit shut-off valve is installed on system circulating water outlet pipe after the heating afterwards, driving steam steam inlet pipe road
Shut-off valve is mounted on driving steam steam inlet pipe, and the driving steam condensate pipe break valve is mounted on driving steam condensate
Guan Shang.
Preferably, the invention also includes Direct Air-Cooled steam discharge to absorption heat pump pipeline regulating valve, system circulating water into
Absorption type heat pump group pipeline regulating valve and driving steam steam inlet pipe road regulating valve, the Direct Air-Cooled steam discharge to absorption type heat pump line
Road regulating valve is mounted on Direct Air-Cooled steam discharge to absorption type heat pump line, and the system circulating water is into absorption type heat pump group pipeline tune
Section valve is mounted on system circulation waterpipe, and driving steam steam inlet pipe road regulating valve is mounted on driving steam steam inlet pipe.
Compared with prior art, the present invention having the advantage that for 600MW grades of Direct Air-cooled Units, the THA of design
Design back-pressure under operating condition is 14kPa, and corresponding saturation temperature is 50 DEG C.To make full use of more than the steam discharge of Direct Air-cooled Unit
Heat reduces energy loss, improves the economy of unit operation, while reducing environmental thermal pollution caused by the weary hot driving of unit.This
Invention recycles Direct Air-cooled Unit exhausted spare heat using absorption heat pump technology, and the circulating water being arranged by system
The heat of recycling is delivered to boiler side First air and air-supply steam air heater by system, for substituting the auxiliary steam (four in traditional design
Section steam extraction) boiler First air and air-supply are heated.
Direct Air-cooled Unit exhaust steam waste heat utilization device of the present invention be using pressure 0.1MPa or so low-pressure final stage or
Absorption type heat pump group of the penult steam extraction as driving steam enters Air-Cooling Island to Direct Air-cooled Unit steam discharge and carries out the weary of cooling
Vapour waste heat is recycled, and by system be arranged circulation by the heat of recycling be delivered to boiler side First air and
Air-supply steam air heater heats for substituting the auxiliary steam in traditional design (four sections of steam extractions) to boiler First air and air-supply.
It is the steam discharge of Direct Air-cooled Unit that it, which enters absorption type heat pump group to carry out the waste heat heat source of waste heat recycling, can directly be derived from direct sky
Cold group steam discharge to Air-Cooling Island blow-off line, Direct Air-cooled Unit steam discharge into Air-Cooling Island carry out cooling steam exhaust passing through absorb
After formula heat pump carries out heat recovery, condensed water can be back to by condensate pipe after Direct Air-Cooled steam discharge to absorption heat pump condensation
Condensate of Direct Air-cooling Unit case (hot well) completes suction to unit steam discharge using the vacuum in condensate tank, make its into
Enter absorption type heat pump group, while its condensed water can be automatically returned in unit condensate tank (hot well) using the pressure difference at this.It inhales
Unit low-pressure final stage or penult steam extraction of the pressure rating in 0.1MPa can be used in the driving steam of receipts formula heat pump, drives steam
Condensed water can be recycled in the condensate tank of Direct Air-cooled Unit by pipeline.System is provided with special closed cycle water system
System, heat to the boiler side First air and air-supply steam air heater for conveying the recycling of absorption type heat pump group heats it, to replace
The steam that the auxiliary vapour header (four sections of steam extractions) used in generation former design heats boiler First air and air-supply, improves unit
The economy of operation.
The present invention is equipped with regulating valve on the Direct Air-Cooled steam discharge to absorption type heat pump line for entering absorption heat pump, can basis
The difference of exhaust temperature under different operating conditions enters the steam exhaust flow of absorption heat pump by adjusting valve regulation, and then controls and absorb
The stability of formula heat pump group in the process of running.Enter absorption heat pump Direct Air-Cooled steam discharge to absorption type heat pump line with it is weary
Isolating valve (shut-off valve) is provided on vapour condensing water conduit, convenient for the isolation and maintenance of system.It is filled on driving jet chimney
There is regulating valve, convenient for controlling driving quantity of steam.It is set on driving jet chimney and on the condensing water conduit of driving steam
It is equipped with isolating valve (shut-off valve), convenient for the isolation and maintenance of system.The condensed water of driving steam can be back to direct sky by pipeline
In cold group condensate tank (hot well).It is provided with enclosed expansion tank in closed circle water system, is used for system water supplement and dimension
Hold the stable of closed circle water system.Enter the pipeline of absorption type heat pump group in closed cycle water and closed cycle water goes out to inhale
It is provided with isolating valve (shut-off valve) on the condensing water conduit of receipts formula heat pump group, convenient for the isolation and maintenance of system.
It is recycled using the exhausted spare heat that absorption heat pump grouping machine group low pressure (LP) cylinder drains into Air-Cooling Island condensation, the heat of recycling
Amount is sent to Boiler Air Heater's by the circulation of enclosed and is heated to boiler air-supply and First air.Absorption type heat pump group
Low-pressure final stage or the penult steam extraction of 0.1MPa or so can be used in driving steam.This method and device are on the one hand to Direct Air-Cooled machine
A large amount of waste heats of group steam discharge are recycled, and the use of four sections of steam extractions of a large amount of high-quality can be saved in unit winter operation
Amount reduces the heat of unit Air-Cooling Island furthermore by utilizing to partially draining into the low pressure (LP) cylinder steam discharge that Air-Cooling Island is condensed
Load improves the economy of unit operation.The present apparatus can effectively to boiler First air and air-supply heating, can be avoided because
For enter air preheater First air and supply air temperature it is too low caused by air preheater low-temperature corrosion and clogging phenomenon generation,
Improve the security and stability of unit operation.
The present invention has following technical effect that 1, by taking Chang Dong vapour factory, the Northwest 600MW Direct Air-cooled Unit as an example,
The mean temperature in annual six months April of October to next year is computed using seven sections of steam extractions of unit at 1.3 DEG C as absorption heat pump
Driving steam, putting into auxiliary steam amount that the device can be saved is 13.3t/h or so, and increased generated energy is 3624kw left
The right side can save 217.5 ten thousand yuan of fund within the above-mentioned period of putting into operation.2, the investment of the equipment can effectively absorb Direct Air-Cooled
The exhausted spare heat of unit, this is just effectively reduced the thermic load of unit Air-Cooling Island, and Direct Air-cooled Unit is arranged under above-mentioned operating condition
1% or so of the thermic load for the excess heat duty cool island being used effectively in vapour, and then reduce the operation back pressure of unit, elevator
The economy of group operation.
Detailed description of the invention
Fig. 1 is the knot that Direct Air-cooled Unit exhausted spare heat is recycled to the device of boiler supply air system in the embodiment of the present invention
Structure schematic diagram.
In figure: 1, Steam Turbine；2, turbine discharge pipeline；3, Air-Cooling Island；4, Air-Cooling Island condensate return pipe；5, directly
Air cooling unit condensate tank；6, Direct Air-Cooled steam discharge is to absorption heat pump pipe break valve；7, Direct Air-Cooled steam discharge is to absorption
Heat pump pipe；8, Direct Air-Cooled steam discharge is to absorption heat pump pipeline regulating valve；9, after Direct Air-Cooled steam discharge to absorption heat pump condensation
Condensate pipe；10, condensing water conduit shut-off valve after air-cooled steam discharge to absorption heat pump condensation；11, evaporator；12, absorber；
13, generator；14, condenser；15, system circulating water is into absorption type heat pump group pipe break valve；16, system circulating water is into absorption
Formula heat pump group pipeline regulating valve；17, system circulating water outlet conduit shut-off valve after heating；18, system circulating water is discharged after heating
Pipe；19, steam steam inlet pipe is driven；20, steam steam inlet pipe road shut-off valve is driven；21, steam steam inlet pipe road regulating valve is driven；22,
Drive steam condensate pipe break valve；23, steam condensation water pipe is driven；24, system circulation waterpipe；25, frequency conversion type system
Water circulating pump；26, a wind inlet；27, First air intake screen；28, primary air fan；29, pressure fan；30, air-supply steam air heater；
31, First air steam air heater；32, cyclic water tank；33, ancillary equipment；34, air preheater.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to Fig. 1, Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system in the present embodiment method: use
The low-pressure final stage of 0.1MPa or 0.1MPa or so or the absorption heat pump grouping machine group low pressure (LP) cylinder of penult steam extraction driving drain into sky
The exhausted spare heat that cool island 3 condenses is recycled, and the circulation for the enclosed that the heat of recycling is arranged by system is sent to boiler
Steam air heater is blown to boiler and First air heats.
The heat that the present embodiment uses absorption type heat pump group to recycle Direct Air-cooled Unit exhausted spare heat, is set by system
The circulation for the enclosed set is sent to Boiler Air Heater's and is heated to boiler air-supply and First air；Into absorption type heat pump group
The steam exhaust that the waste heat heat source of waste heat recycling is condensed for Direct Air-cooled Unit steam discharge into Air-Cooling Island is carried out, direct sky is directly derived from
Cold group steam discharge is to Air-Cooling Island pipeline.
The steam exhaust that Direct Air-cooled Unit steam discharge in the present embodiment is condensed into Air-Cooling Island by absorption heat pump into
After row heat recovery, condensed water is back to Direct Air-Cooled by condensate pipe 9 after Direct Air-Cooled steam discharge to absorption heat pump condensation
Unit condensate tank 5 is completed the suction to unit steam discharge using the vacuum in Condensate of Direct Air-cooling Unit case 5, is made it into
Absorption type heat pump group, while its condensed water being enabled to automatically return to Condensate of Direct Air-cooling Unit case 5 using the pressure difference at this
In.System is provided with the circulation of enclosed for sending the heat that absorption type heat pump group recycles to boiler side First air warm wind
Device 31 and air-supply steam air heater 30, to substitute in existing design auxiliary vapour header used by steam air heater during unit winter operation
The steam of (four sections of steam extractions) heats boiler First air and air-supply.
System in the present embodiment is provided with variable frequency closed type water circulating pump and is used to provide the heat conveying for recycling heat pump group
To boiler side First air steam air heater 31 and air-supply steam air heater 30 required for circulation power, while also act as variable frequency adjustment effect,
For adjusting First air and supply air temperature after steam air heater heats.Since system is provided with the circulation of enclosed, institute
First air and air-supply are added in a manner of being exchanged heat for boiler First air steam air heater 31 and air-supply steam air heater 30 using air water
Heat, while auxiliary steam in former design can be retained and mentioned to steam air heater interface pipe with ensureing the spare of Boiler Air Heater's heat source
The security and stability of high unit operation.
It by the device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system include Steam Turbine in the present embodiment
1, turbine discharge pipeline 2, Air-Cooling Island 3, Air-Cooling Island condensate return pipe 4, Condensate of Direct Air-cooling Unit case 5, Direct Air-Cooled
Steam discharge is to absorption heat pump pipe break valve 6, Direct Air-Cooled steam discharge to absorption type heat pump line 7, Direct Air-Cooled steam discharge to absorption
Condensate pipe 9, air-cooled steam discharge to absorption heat pump after heat pump pipeline regulating valve 8, Direct Air-Cooled steam discharge to absorption heat pump condense
Condensing water conduit shut-off valve 10 after condensation, evaporator 11, absorber 12, generator 13, condenser 14, system circulating water are into absorption
Formula heat pump group pipe break valve 15, system circulating water go out into system circulating water after absorption type heat pump group pipeline regulating valve 16, heating
System circulating water outlet pipe 18, driving steam steam inlet pipe 19, the cut-off of driving steam steam inlet pipe road after waterpipe shut-off valve 17, heating
Valve 20, driving steam steam inlet pipe road regulating valve 21, driving steam condensate pipe break valve 22, driving steam condensation water pipe 23,
System circulation waterpipe 24, frequency conversion type system circulation water pump 25, wind inlets 26, a First air intake screens 27, primary air fan
28, pressure fan 29, air-supply steam air heater 30, First air steam air heater 31, cyclic water tank 32, ancillary equipment 33 and air preheater 34.
Steam Turbine 1 and Air-Cooling Island 3 in the present embodiment are connected by turbine discharge pipeline 2, Air-Cooling Island 3 and directly sky
Cold group condensate tank 5 is connected by Air-Cooling Island condensate return pipe 4, Direct Air-Cooled steam discharge to the both ends of absorption type heat pump line 7
It is connected on turbine discharge pipeline 2 and evaporator 11, Condensate of Direct Air-cooling Unit case 5 and evaporator 11 pass through directly
Condensate pipe 9 connects after air-cooled steam discharge is condensed to absorption heat pump, evaporator 11, absorber 12, generator 13 and condenser 14
Head and the tail are sequentially connected, and absorber 12, ancillary equipment 33 and condenser 14 are sequentially connected.
Driving steam steam inlet pipe 19 and driving steam condensation water pipe 23 in the present embodiment are connect with generator 13, are condensed
Device 14 is connect with air-supply steam air heater 30 and First air steam air heater 31 respectively by system circulating water outlet pipe 18 after heating, and air-supply is warm
Wind device 30 and First air steam air heater 31 are connect with cyclic water tank 32, and cyclic water tank 32 and absorber 12 pass through system circulation water pipe
Road 24 connects, and frequency conversion type system circulation water pump 25 is mounted on system circulation waterpipe 24, pressure fan 29, air-supply 30 and of steam air heater
Air preheater 34 is sequentially connected, a wind inlet 26, First air intake screen 27, primary air fan 28, First air steam air heater 31 and sky
Pre- device 34 is sequentially connected.
Direct Air-Cooled steam discharge to absorption heat pump pipe break valve 6 in the present embodiment is mounted on Direct Air-Cooled steam discharge to suction
On receipts formula heat pump pipe 7, condensing water conduit shut-off valve 10 is mounted on Direct Air-Cooled steam discharge after air-cooled steam discharge to absorption heat pump condenses
After to absorption heat pump condensation on condensate pipe 9, system circulating water is mounted on system into absorption type heat pump group pipe break valve 15
On circulating water pipeline 24, system circulating water outlet conduit shut-off valve 17 installs system circulating water outlet pipe 18 after the heating after heating
On, driving steam steam inlet pipe road shut-off valve 20 is mounted on driving steam steam inlet pipe 19, drives steam condensate pipe break valve
22 are mounted on driving steam condensation water pipe 23.Direct Air-Cooled steam discharge to absorption heat pump pipeline regulating valve 8 is mounted on direct sky
On cold steam discharge to absorption type heat pump line 7, system circulating water is mounted on system circulating water into absorption type heat pump group pipeline regulating valve 16
On pipeline 24, driving steam steam inlet pipe road regulating valve 21 is mounted on driving steam steam inlet pipe 19.
Direct Air-cooled Unit exhausted spare heat recyclable device of the present invention enters absorption type heat pump group and carries out the remaining of waste heat recycling
Heat source is that Direct Air-cooled Unit steam discharge carries out cooling steam exhaust into Air-Cooling Island, can directly be derived from Direct Air-cooled Unit steam discharge to sky
The turbine discharge pipeline 2 of cool island；Direct Air-cooled Unit steam discharge carries out cooling steam exhaust into Air-Cooling Island and is passing through absorption heat pump
After carrying out heat recovery, condensed water can be back to directly by condensate pipe 9 after Direct Air-Cooled steam discharge to absorption heat pump condensation
Air cooling unit condensate tank 5(hot well), the suction to unit steam discharge is completed using the vacuum in condensate tank, makes it into suction
Receipts formula heat pump group, while its condensed water is automatically returned in 5 unit condensate tanks (hot well) using the pressure difference at this；?
Direct Air-Cooled steam discharge is equipped with to absorption heat pump pipeline into the Direct Air-Cooled steam discharge of absorption heat pump to absorption type heat pump line 7
Regulating valve 8 can enter the steam exhaust flow of absorption heat pump by adjusting, in turn according to the difference of exhaust temperature under different operating conditions
Control the stability of absorption type heat pump group in the process of running；In the Direct Air-Cooled steam discharge for entering absorption heat pump to absorption type heat
Direct Air-Cooled steam discharge is respectively provided with to absorption on condensate pipe 9 after pump line 7 and Direct Air-Cooled steam discharge to absorption heat pump condensation
Condensing water conduit shut-off valve 10 after formula heat pump pipe break valve 6 and air-cooled steam discharge are condensed to absorption heat pump, convenient for system every
From and maintenance.
Direct Air-cooled Unit exhaust steam waste heat utilization device of the present invention be using pressure 0.1MPa or so low-pressure final stage or
Absorption type heat pump group of the penult steam extraction as driving steam, equipped with driving steam steam inlet pipe road on driving steam steam inlet pipe 19
Regulating valve 21, convenient for controlling driving quantity of steam；On driving steam steam inlet pipe 19 and on driving steam condensation water pipe 23
Be respectively set driving steam steam inlet pipe road shut-off valve 20 and driving steam condensate pipe break valve 22, convenient for system isolation with
Maintenance；Drive the condensed water of steam can be by driving steam condensation water pipe 23 to be back to Condensate of Direct Air-cooling Unit case 5(hot well)
In.
Direct Air-cooled Unit exhausted spare heat of the present invention is recycled in the method and device of Boiler Air Heater's provided with special
Closed circle water system, frequency conversion type system circulation water pump 25 are used to convey the recirculated water after absorbing heat in absorption type heat pump group to pot
Furnace side First air and air-supply steam air heater 30, First air steam air heater 31, heat First air therethrough and air-supply, with substitution
The steam that the auxiliary vapour header (four sections of steam extractions) used in original design heats boiler First air and air-supply improves unit fortune
Capable economy.The effect of cyclic water tank 32 is that moisturizing is carried out to closed circle water system, the safety of safeguards system operation.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (10)
1. a kind of method that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, it is characterised in that: use
The low-pressure final stage of 0.1MPa or 0.1MPa or so or the absorption heat pump grouping machine group low pressure (LP) cylinder of penult steam extraction driving drain into sky
The exhausted spare heat of cool island (3) condensation is recycled, and the circulation for the enclosed that the heat of recycling is arranged by system is sent to pot
Furnace steam air heater is blown to boiler and First air heats.
2. the method according to claim 1 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: the heat recycled using absorption type heat pump group to Direct Air-cooled Unit exhausted spare heat, the enclosed being arranged by system
Circulation send to Boiler Air Heater's to boiler air-supply and First air heat；Waste heat is carried out into absorption type heat pump group
The waste heat heat source of recycling is the steam exhaust that Direct Air-cooled Unit steam discharge is condensed into Air-Cooling Island, is directly derived from Direct Air-cooled Unit row
Vapour is to Air-Cooling Island pipeline.
3. the method according to claim 1 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: the steam exhaust that Direct Air-cooled Unit steam discharge is condensed into Air-Cooling Island after carrying out heat recovery by absorption heat pump,
Its condensed water is back to Condensate of Direct Air-cooling Unit case by condensate pipe (9) after Direct Air-Cooled steam discharge to absorption heat pump condensation
(5), the suction to unit steam discharge is completed using the vacuum in Condensate of Direct Air-cooling Unit case (5), makes it into absorption type heat
Pump group, while pressure difference of its condensate utilization at this is automatically returned in Condensate of Direct Air-cooling Unit case (5).
4. the method according to claim 1 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: system is provided with the circulation of enclosed for sending the heat that absorption type heat pump group recycles to boiler side First air
Steam air heater (31) and air-supply steam air heater (30), it is auxiliary used by steam air heater to substitute in existing design during unit winter operation
The steam of vapour header heats boiler First air and air-supply.
5. the method according to claim 1 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: system is provided with variable frequency closed type water circulating pump and the heat that heat pump group recycles is delivered to boiler side First air for providing
Circulation power required for steam air heater (31) and air-supply steam air heater (30), while variable frequency adjustment effect is also acted as, for adjusting warp
First air and supply air temperature after crossing steam air heater heating.
6. the method according to claim 1 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: since system is provided with the circulation of enclosed, so for boiler First air steam air heater (31) and air-supply warm wind
Device (30) heats First air and air-supply by the way of air water heat exchange, while retaining in former design auxiliary steam to warm wind
Device interface pipe improves the security and stability of unit operation to ensure the spare of Boiler Air Heater's heat source.
7. a kind of device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, it is characterised in that: including steamer
Unit (1), turbine discharge pipeline (2), Air-Cooling Island (3), Air-Cooling Island condensate return pipe (4), Condensate of Direct Air-cooling Unit
Condensate pipe after case (5), Direct Air-Cooled steam discharge to absorption type heat pump line (7), Direct Air-Cooled steam discharge to absorption heat pump condense
(9), system circulating water outlet pipe (18), drive after evaporator (11), absorber (12), generator (13), condenser (14), heating
Dynamic steam steam inlet pipe (19), driving steam condensation water pipe (23), system circulation waterpipe (24), frequency conversion type system circulation water pump
(25), a wind inlet (26), First air intake screen (27), primary air fan (28), pressure fan (29), air-supply steam air heater
(30), First air steam air heater (31), cyclic water tank (32) and air preheater (34), the Steam Turbine (1) and Air-Cooling Island (3) pass through
Turbine discharge pipeline (2) connection, the Air-Cooling Island (3) and Condensate of Direct Air-cooling Unit case (5) pass through Air-Cooling Island condensed water
Return pipe (4) connection, the both ends of the Direct Air-Cooled steam discharge to absorption type heat pump line (7) are connected to turbine discharge pipeline
(2) and on evaporator (11), the Condensate of Direct Air-cooling Unit case (5) and evaporator (11) pass through Direct Air-Cooled steam discharge to suction
Condensate pipe (9) connects after the condensation of receipts formula heat pump, the evaporator (11), absorber (12), generator (13) and condenser
(14) it is sequentially connected from beginning to end, the driving steam steam inlet pipe (19) and driving steam condensation water pipe (23) connect with generator (13)
Connect, the condenser (14) by heating after system circulating water outlet pipe (18) respectively with air-supply steam air heater (30) He Yici air-heating
Wind device (31) connection, the air-supply steam air heater (30) and First air steam air heater (31) are connect with cyclic water tank (32), described to follow
Ring water tank (32) and absorber (12) are connected by system circulation waterpipe (24), frequency conversion type system circulation water pump (25) peace
On system circulation waterpipe (24), the pressure fan (29), air-supply steam air heater (30) and air preheater (34) are sequentially connected, institute
State a wind inlet (26), First air intake screen (27), primary air fan (28), First air steam air heater (31) and air preheater (34)
It is sequentially connected.
8. the device according to claim 7 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: further including ancillary equipment (33), the absorber (12), ancillary equipment (33) and condenser (14) are sequentially connected.
9. the device according to claim 7 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: further including after Direct Air-Cooled steam discharge is condensed to absorption heat pump pipe break valve (6), air-cooled steam discharge to absorption heat pump
Condensing water conduit shut-off valve (10), system circulating water into absorption type heat pump group pipe break valve (15), heating after system circulating water
Outlet conduit shut-off valve (17), driving steam steam inlet pipe road shut-off valve (20) and driving steam condensate pipe break valve (22),
The Direct Air-Cooled steam discharge to absorption heat pump pipe break valve (6) is mounted on Direct Air-Cooled steam discharge to absorption type heat pump line (7)
On, condensing water conduit shut-off valve (10) is mounted on Direct Air-Cooled steam discharge to absorption after the air-cooled steam discharge to absorption heat pump condenses
After the condensation of formula heat pump on condensate pipe (9), the system circulating water is mounted on into absorption type heat pump group pipe break valve (15) is
It unites on circulating water pipeline (24), system circulating water outlet conduit shut-off valve (17) installs system circulation after the heating after the heating
On water outlet pipe (18), driving steam steam inlet pipe road shut-off valve (20) is mounted in driving steam steam inlet pipe (19), described
Driving steam condensate pipe break valve (22) is mounted in driving steam condensation water pipe (23).
10. the device according to claim 7 that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system, special
Sign is: further including Direct Air-Cooled steam discharge to absorption heat pump pipeline regulating valve (8), system circulating water into absorption type heat pump group pipe
Road regulating valve (16) and driving steam steam inlet pipe road regulating valve (21), the Direct Air-Cooled steam discharge to absorption heat pump pipeline are adjusted
Valve (8) is mounted on Direct Air-Cooled steam discharge to absorption type heat pump line (7), and the system circulating water is into absorption type heat pump group pipeline tune
Section valve (16) is mounted on system circulation waterpipe (24), and driving steam steam inlet pipe road regulating valve (21) is mounted on driving and steams
On vapour steam inlet pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217490.5A CN109443033A (en) | 2018-10-18 | 2018-10-18 | A kind of method and device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217490.5A CN109443033A (en) | 2018-10-18 | 2018-10-18 | A kind of method and device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system |
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| CN109443033A true CN109443033A (en) | 2019-03-08 |
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| CN201811217490.5A Pending CN109443033A (en) | 2018-10-18 | 2018-10-18 | A kind of method and device that Direct Air-cooled Unit exhausted spare heat is recycled to boiler supply air system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185507A (en) * | 2019-05-10 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of indirect air cooling unit circulating water afterheat depth energy saving comprehensive utilization device and method |
| CN110186218A (en) * | 2019-05-10 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of Direct Air-cooled Unit exhausted spare heat depth energy saving comprehensive utilization recyclable device and method |
| CN112555888A (en) * | 2020-12-22 | 2021-03-26 | 武瑞香 | Energy-saving utilization device of boiler air supply system as cold source of unit |
| CN114485203A (en) * | 2022-01-28 | 2022-05-13 | 山西启光发电有限公司 | System and method for reducing backpressure of condenser of air cooling unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832156A (en) * | 2010-05-10 | 2010-09-15 | 江苏双良空调设备股份有限公司 | Condensation heat recovering and central heating supply system of power plant direct air cooling unit |
| CN102828789A (en) * | 2011-06-14 | 2012-12-19 | 同方节能工程技术有限公司 | Low-voltage heating equipment of power plant |
| CN104653242A (en) * | 2013-11-18 | 2015-05-27 | 舒少辛 | Waste heat recovery device for direct air-cooling unit |
| CN104948240A (en) * | 2015-06-01 | 2015-09-30 | 宋子琛 | Exhaust steam waste heat recycling system for small steam turbine of induced draft fan through circulating water based on steam turbine driving |
| CN205383640U (en) * | 2016-02-23 | 2016-07-13 | 北京慧峰仁和科技股份有限公司 | Novel circulating water afterheat system is retrieved to fan heater |
| CN106437907A (en) * | 2016-08-16 | 2017-02-22 | 华电电力科学研究院 | Direct air cooling unit exhaust steam waste heat recovery device and method |
| CN207214215U (en) * | 2017-09-15 | 2018-04-10 | 中国建筑标准设计研究院有限公司 | A kind of compression type heat heat pump heating system using Air-cooled Unit subsidiary engine cooling water heat |
-
2018
- 2018-10-18 CN CN201811217490.5A patent/CN109443033A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832156A (en) * | 2010-05-10 | 2010-09-15 | 江苏双良空调设备股份有限公司 | Condensation heat recovering and central heating supply system of power plant direct air cooling unit |
| CN102828789A (en) * | 2011-06-14 | 2012-12-19 | 同方节能工程技术有限公司 | Low-voltage heating equipment of power plant |
| CN104653242A (en) * | 2013-11-18 | 2015-05-27 | 舒少辛 | Waste heat recovery device for direct air-cooling unit |
| CN104948240A (en) * | 2015-06-01 | 2015-09-30 | 宋子琛 | Exhaust steam waste heat recycling system for small steam turbine of induced draft fan through circulating water based on steam turbine driving |
| CN205383640U (en) * | 2016-02-23 | 2016-07-13 | 北京慧峰仁和科技股份有限公司 | Novel circulating water afterheat system is retrieved to fan heater |
| CN106437907A (en) * | 2016-08-16 | 2017-02-22 | 华电电力科学研究院 | Direct air cooling unit exhaust steam waste heat recovery device and method |
| CN207214215U (en) * | 2017-09-15 | 2018-04-10 | 中国建筑标准设计研究院有限公司 | A kind of compression type heat heat pump heating system using Air-cooled Unit subsidiary engine cooling water heat |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185507A (en) * | 2019-05-10 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of indirect air cooling unit circulating water afterheat depth energy saving comprehensive utilization device and method |
| CN110186218A (en) * | 2019-05-10 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of Direct Air-cooled Unit exhausted spare heat depth energy saving comprehensive utilization recyclable device and method |
| CN110186218B (en) * | 2019-05-10 | 2023-11-28 | 华电电力科学研究院有限公司 | Deep energy-saving comprehensive utilization and recovery device and method for exhaust steam waste heat of direct air cooling unit |
| CN110185507B (en) * | 2019-05-10 | 2023-12-05 | 华电电力科学研究院有限公司 | Deep energy-saving comprehensive utilization device and method for circulating water waste heat of indirect air cooling unit |
| CN112555888A (en) * | 2020-12-22 | 2021-03-26 | 武瑞香 | Energy-saving utilization device of boiler air supply system as cold source of unit |
| CN114485203A (en) * | 2022-01-28 | 2022-05-13 | 山西启光发电有限公司 | System and method for reducing backpressure of condenser of air cooling unit |
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